<template>
  <div>
    <template v-for="(item, index) in options">
      <template v-if="values.includes(item.value)" class="tag-view">
        <span
            v-if="(item.raw.listClass == 'default' || item.raw.listClass == '') && (item.raw.cssClass == '' || item.raw.cssClass == null)"
            :key="item.value"
            :index="index"
            :class="item.raw.cssClass"
        />
        <uni-tag
            v-else
            :type="item.raw.listClass"
            :text="item.label"
        >
        </uni-tag>
      </template>
    </template>
    <template v-if="unmatch && showValue">
      {{ unmatchArray | handleArray }}
    </template>
  </div>
</template>

<script>
export default {
  name: 'DictTag',
  props: {
    options: {
      type: Array,
      default: null
    },
    value: [Number, String, Array],
    // 当未找到匹配的数据时，显示value
    showValue: {
      type: Boolean,
      default: true
    },
    separator: {
      type: String,
      default: ','
    }
  },
  data() {
    return {
      unmatchArray: [] // 记录未匹配的项
    }
  },
  computed: {

    values() {
      if (this.value === null || typeof this.value === 'undefined' || this.value === '') return []
      return Array.isArray(this.value) ? this.value.map(item => '' + item) : String(this.value).split(this.separator)
    },
    unmatch() {
      this.unmatchArray = []
      // 没有value不显示
      if (this.value === null || typeof this.value === 'undefined' || this.value === '' || this.options.length === 0) return false
      // 传入值为数组
      let unmatch = false // 添加一个标志来判断是否有未匹配项
      this.values.forEach(item => {
        if (!this.options.some(v => v.value === item)) {
          this.unmatchArray.push(item)
          unmatch = true // 如果有未匹配项，将标志设置为true
        }
      })
      return unmatch // 返回标志的值
    }

  },
  filters: {
    handleArray(array) {
      if (array.length === 0) return ''
      return array.reduce((pre, cur) => {
        return pre + ' ' + cur
      })
    }
  }
}
</script>
<style scoped>
.el-tag + .el-tag {
  margin-left: 10px;
}
</style>
